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Briefly: The silicon balance spring in Breguet Tradition 7047, unveiled at Basel World 2010 is technologically superior and is more precise, thanks to silicon being totally impervious to magnetic fieldsbreguet tradition 7047 Balance spring is the most responsive in terms of improvements to timekeeping precision and its performance crucial to the workings of mechanical watch movement. One of a series of vital parts at the heart of the movement, its regular oscillations gives the movement its rhythm and helps regulate the flow of time.Anthony Louis Breguet conceived the "Breguet overcoil" spring in the year 1795. Two hundred years later it still is the reference in terms of balance spring. A.-L. Breguet got the idea of altering the balance spring’s terminal curve by raising its end and bending it slightly as a way of improving its isochronism. Another Breguet, Louis-Clement, in 1830 sought to prevail over magnetic fields by crafting balance springs in glass instead of metal. Breguet himself had made balance springs in gold to counter oxidation. One such cylindrical spring was fitted in the celebrated Marie-Antoinette watch; its shape was designed to improve considerably its isochronism by repoising its centre of gravity.Over the years and so much progress in the art and science of horology watchmakers still cribbed about precision. But with arrival of silicon balance spring, courtesy Breguet in its Breguet Tradition 7047 model launched at Basel World 2010.The balance spring is a very fine coil spring. Usually made of metal, it is vulnerable to shocks, magnetic fields and even the pull of gravity, which can cause warping.Today, the new Breguet silicon balance spring is featured in the Breguet Tradition 7047 model with tourbillon and fusee-and-chain transmission. Inspired by the design of the first tourbillon-equipped pocket watches devised by Breguet, a platinum version is now available fitted with a movement fashioned in an anthracite-toned metal alloy.What are the advantages of? a silicon balance spring?Technologically superior Needs less oil Is more preciseTotally impervious to magnetic fieldsYields to a broad variety of shapes Is lighter than metal and thus less prone to deformation As components fashioned from silicon are subjected to a special process it greatly improves their resistance to handling and shocks

The Marine 5837 was introduced in 2007 as the first tourbillon watch with a silicon escapement. The use of this highly innovative material for the balance-spring, escapement wheel and lever made it possible to create a tourbillon that was light, and therefore highly shock resistant; non-magnetic; and require no lubricants. The use of titanium for the tourbillon carriage also made the entire watch lighter.The combination of this prestigious complication, invented by Abraham-Louis Breguet, with a chronograph function, marked the birth of an exceptional timepiece. Here it is presented as a High Jewellery version in which Breguet's watch*** and jewellery expertise intersect. It has a case measuring 43 mm in diameter, fully paved with baguette-cut diamonds. The lugs and the space between, casebands, flat su***ces of the pushpieces, and sides of the crown are all paved. The ultimate expression of this is the bezel, which is set with trapeze-cut diamonds arranged in staggered rows. The entire piece boasts 186 gems totalling about 11.77 carats. The silvered solid gold dial is hand engraved on a rose engine in the Breguet tradition, in this case with a "wave" pattern, a motif that also rims the chapter ring. The dial is set with 132 full-cut diamonds, about 0.356 carat in all. The buckle, set with 58 diamonds totalling 0.23 carat, completes this masterpiece.The Marine Tourbillon High Jewellery watch marks yet another exceptional achievement by Breguet.All informations about the watch fair: BASELWORLD